Mendel s work. Biology CLIL lesson. Istituto tecnico industriale A. MALIGNANI Udine. Docente:Prof. Annamaria Boasso

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Mendel s work. Biology CLIL lesson. Istituto tecnico industriale A. MALIGNANI Udine. Docente:Prof. Annamaria Boasso"

Transcription

1 Istituto tecnico industriale A. MALIGNANI Udine Docente:Prof. Annamaria Boasso Modulo di genetica realizzato per l applicazione in classi seconde. Durata: 4 ore Biology CLIL lesson Mendel s work Objectives Learn about Mendel Listen for specific information Read for detailed information Use scientific terms Glossary Genetics Inherited factors Dominant Recessive Homozygote Heterozygote Phenotype Genotype

2 BIOGRAPHY Gregor Mendel was an Austrian monk, teacher and scientist often called the father of genetics. He was born in 1822 in the Austrian Silesia (now the Czech Republic) and was the son of a farmer. He entered the Abbey of St.Thomas in Brno in 1843; in 1851 he was sent to study at the University of Vienna, and in 1853 he returned to his Abbey as a teacher. At the monastery, Mendel kept a small garden where he experimented growing pea plants. He studied the way their characteristics were passed on from one generation to the next, looking for patterns. Mendel chose to study features which were easy to observe, such as plant height, flower color and seed shape. Pea plants were also easy to grow and Mendel was able to either self - pollinate or cross - pollinate the flowers. Mendel planned his work and meticulously collected and recorded his results. He was also able to analyse the huge amount of data that he had built up and so come to sound scientific conclusions. He collected data for 10 years. His sample size was large; he tabulated results from 29,000 pea plants. He replicated his experiments and analyzed his data with statistics (he tabulated results). Mendel chose Garden Peas for the fallowing characteristics: Peas take little space and are easy to cultivate They are inexpensive They have a short generation time compared to large animals They have some distinct characteristics that are easy to recognize. He studied such characteristics as pea shape (round - wrinkled), pea color (yellow - green), pod shape (inflated - constricted), pod color (green - yellow), flower color (red - white) and they were either one thing or another. The amazing thing about Mendel s work is that he worked out the underlying rules of inheritance before anything had been discovered about DNA, genes and chromosomes. Once scientists knew about chromosomes and genes, they could explain how Mendel s inherited factors could be passed on from one generation to the next. The importance of Mendel s work was not recognised until after his death (1884). MENDEL CROSSES Mendel used pure-breeding individuals in the first generation (P1) P1 yellow x green

3 F1 all yellow F2 75% yellow, 25% green. The F1 generation showed only one character that was present in P1. The other character reappeared in the F2. Mendel concluded that the F1 plants must contain 2 distinct factors, one for each character. The character that was seen in the F1 is called DOMINANT. The character that was not seen in the F1 is called RECESSIVE. The characteristics studied by Mendel were due to single genes. By convention, upper case letters are used to represent dominant genes (A), lower case letters are used for recessive genes (a). Because individuals are diploid, two letters can be used to represent the genetic makeup of an individual. The following three gene combinations are possible: AA, Aa and aa. HOMOZYGOTE refers to an individual that has two identical genes (AA or aa). HETEROZYGOTE refers to an individual that has two different forms of the gene (Aa); a heterozygote is also called HYBRID. PRINCIPLE OF SEGREGATION Mendel s principle of segregation states that paired factors (genes) separate during meiosis and form haploid gametes, which carry one copy of each chromosome. An AA individual produces all A gametes; an aa individual produces all a gametes. An Aa individual produces two kinds of gametes: A and a.

4 Individual (genotype) AA Aa aa Type of gametes produced all gametes will contain an "A" 1/2 will contain "A" and 1/2 will contain "a" all "a" gametes PUNNETT SQUARES The Punnett square is a diagram used to show all of the combinations that are formed when an individual is crossed with another one. The Punnett square in the diagram below is used to show the cross between two Aa individuals. The Punnett square below is used for this cross: AA X Aa. The genetic makeup of an individual is called GENOTYPE; the characteristics of an individual are its PHENOTYPE.

5 After listening to the lesson 1)Complete the fallowing sentences with the missing information: 1. Gregor Mendel was an Austrian, and, often called the father of. 2. Mendel kept a small garden and experimented growing plants. 3. He chose pea plants because they were to grow. 4. He collected data for. 5. He tabulated results from pea plants. 6. He replicated his experiments and analyzed his data with. 7. Peas take little place and are easy to. 8. Peas have some distinct that are easy to recognize. 9. Mendel worked out the of before anything had been discovered about DNA, genes and chromosomes. 10. The importance of Mendel s work was not until after his death. 2) Complete these sentences by choosing the correct word from inside the brackets: 1. A pea plant with a tall (genotype/phenotype) could have a (genotype/phenotype) TT or Tt. 2. A tall pea plant with genotype TT is (homozygous/heterozygous) dominant. 3. A tall pea plant with genotype Tt is (homozygous/heterozygous) dominant. 4. A pea plant with genotype tt is (homozygous/heterozygous) recessive. 3)Draw a Punnett square to show the genetic cross between a homozygous dominant and a homozygous recessive. Then write down the possible genotypes or phenotypes. 4) Match the names to the correct definitions: 1. HOMOZYGOTE 2. HETEROZYGOTE 3. DOMINANT 4. RECESSIVE 5. GENOTYPE 6. PHENOTYPE a. The character that was seen in F1 b. The genetic makeup of an individual c. An individual that has two different forms of gene d. The characteristics of an individual e. The character that was not seen in F1 f. An individual that has two identical genes.

6 5) Explain the difference between genotype and phenotype. 6) Read the test and answer the following questions: Gregor Mendel was an Austrian and Augustinian priest and scientist often called the father of genetics for his study of the inheritance of traits in pea plants. He was inspired by both his professors at university and his colleagues at the monastery to study variations in plants, and he concluded his study in the monastery s garden. Mendel showed that the inheritance of traits follows particular laws, which were later named after him. His experiments brought forth two generalisations which later became known as Mendel s Laws of Inheritance. The significance of Mendel s work was not recognized until the turn of the 20th century. Its rediscovery prompted the foundation of genetics. 1. How was Mendel called? 2. What did Mendel study? 3. What did Mendel show? 4. Who was Mendel inspired by? 5. How did Mendel s experiments become known? 6. When was Mendel s work recognized? Web sites and references: New Biology for you (G. Williams Nelson Thornes)

7 CLIL lesson Mendel s work FINAL TEST 1)Complete the fallowing sentences with the missing information 1. Gregor Mendel was an Austrian,, often called the father of 2. Mendel kept a small garden and experimented growing plants. 3. He chose pea plants because they were to grow. 4. He collected data for. 5. He tabulated results from pea plants. 6. He replicated his experiments and analyzed his data with. 7. Peas take little place and are easy to. 8. Peas have some distinct that are easy to recognize. 9. Mendel worked out the of before anything had been discovered about DNA, genes and chromosomes. 10. The importance of Mendel s work was not until after his death. 2)Explain the difference between heterozygous and homozygous. 3)Draw a Punnett square to show a heterozygous cross and write down the possible genotypes and phenotypes. 4) Match the names to the correct definitions: 1) HOMOZYGOTE 2) HETEROZYGOTE 3) DOMINANT 4) RECESSIVE 5) GENOTYPE 6) PHENOTYPE 7) INHERITED FACTORS 8) GENETICS a. The character that was seen in F1 b. The genetic makeup of an individual c. An individual that has two different forms of gene d. The characteristics of an individual e. The character that was not seen in F1 f. An individual that has two identical genes g. The study of inheritance h. Characteristics that could be passed from one generation to the next.

8 5) Say whether the following statements are true (T) or false (F). a. The principle of segregation states that paired factors (genes) separate and form haploid gametes. T F b. An AA individual produces two kinds of gametes A and a. T F c. A heterozygote is an individual that has two different forms of gene. T F d. The letter a is used for dominant genes. T F e. P1 is the first generation of a genetic cross. T F f. The genetic makeup of an individual is called phenotype. T F g. A Punnett square is a diagram used to show all the combinations in a genetic cross. T F h. A heterozygote is not hybrid. T F i. Homozygote refers to an individual that has two identical genes: AA or aa. T F l. Mendel discovered genes and chromosomes. T F 6) Read the test and answer the following questions: Gregor Mendel was an Austrian and Augustinian priest and scientist often called the father of genetics for his study of the inheritance of traits in pea plants. He was inspired by both his professors of university and his colleagues at the monastery to study variations in plants, and he concluded his study in the monastery s garden. Mendel showed that the inheritance of traits follows particular laws, which were later named after him. His experiments brought forth two generalizations which later became known as Mendel s Laws of Inheritance. The significance of Mendel s work was not recognized until the turn of the 20th century. Its rediscovery prompted the foundation of genetics. 1) How was Mendel called? 2) What did Mendel study? 3) What did Mendel show? 4) Who was Mendel inspired by? 5) How did the experiments of Mendel become known? 6) When was Mendel s work recognized? 7) What did Mendel s work rediscovery prompt?

Chapter 11. Classical (Mendelian) Genetics

Chapter 11. Classical (Mendelian) Genetics Chapter 11 Classical (Mendelian) Genetics The study of how genes bring about characteristics, or traits, in living things and how those characteristics are inherited. Genetics Geneticist A scientist who

More information

Chapter 2: Traits and How They Change

Chapter 2: Traits and How They Change Table of Contents Chapter 2: Traits and How They Change Section 2: Genetics Heredity x Genetics Mendel s experiments Punnett Square REVIEW: Genes are sections of DNA Genes have different Alleles A gene

More information

Foundations of Genetics. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display

Foundations of Genetics. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display Foundations of Genetics 8.1 Mendel and the Garden Pea The tendency for traits to be passed from parent to offspring is called heredity Gregor Mendel (1822-1884) The first person to systematically study

More information

1. chose the pea plant for 3 reasons: a. structure of the pea flower (more later) b. presence of distinctive traits c. rapid reproductive cycle 2.

1. chose the pea plant for 3 reasons: a. structure of the pea flower (more later) b. presence of distinctive traits c. rapid reproductive cycle 2. Genetics I. Genetics A. genetics: scientific study of heredity 1. we have known for centuries that traits are passed from parents to offspring 2. we didn t know how the traits were determined B. recall

More information

Introduction to genetics

Introduction to genetics Introduction to genetics Biology chapter 11 Mr. Hines 11.1 The work of Gregor Mendel What makes you unique? A. Nearly all living things are unique in some way. B. Humans for example all have different

More information

BIOLOGY I Study Guide # 5: Topic Genetics 1

BIOLOGY I Study Guide # 5: Topic Genetics 1 BIOLOGY I Study Guide # 5: Topic Genetics 1 Biology Textbook pg. 262 285, 340-365 Name: I. Mendelian Genetics (pg. 263 272) Define: a. genetics: b. fertilization: c. true-breeding: d. trait: e. hybrid:

More information

Name: Class: Date: ID: A

Name: Class: Date: ID: A Name: Class: _ Date: _ Meiosis Quiz 1. (1 point) A kidney cell is an example of which type of cell? a. sex cell b. germ cell c. somatic cell d. haploid cell 2. (1 point) How many chromosomes are in a human

More information

A trait is a variation of a particular character (e.g. color, height). Traits are passed from parents to offspring through genes.

A trait is a variation of a particular character (e.g. color, height). Traits are passed from parents to offspring through genes. 1 Biology Chapter 10 Study Guide Trait A trait is a variation of a particular character (e.g. color, height). Traits are passed from parents to offspring through genes. Genes Genes are located on chromosomes

More information

Chapter 11 Genetics. STATE FRAMEWORKS 3. Genetics

Chapter 11 Genetics. STATE FRAMEWORKS 3. Genetics STATE FRAMEWORKS 3. Genetics Chapter 11 Genetics Central Concepts: Genes allow for the storage and transmission of genetic information. They are a set of instructions encoded in the nucleotide sequence

More information

Single-Gene Inheritance (Learning Objectives) Review the presence of homologous chromosomes in diploid organisms that reproduce sexually, the

Single-Gene Inheritance (Learning Objectives) Review the presence of homologous chromosomes in diploid organisms that reproduce sexually, the Single-Gene Inheritance (Learning Objectives) Review the presence of homologous chromosomes in diploid organisms that reproduce sexually, the definitions of karyotype, autosomes and sex chromosomes. Recognize

More information

What is Genetics? Genetics is the scientific study of heredity

What is Genetics? Genetics is the scientific study of heredity What is Genetics? Genetics is the scientific study of heredity What is a Trait? A trait is a specific characteristic that varies from one individual to another. Examples: Brown hair, blue eyes, tall, curly

More information

11.1 Traits. Studying traits CHAPTER 11. Breeds and traits. Genetics is the study of heredity

11.1 Traits. Studying traits CHAPTER 11. Breeds and traits. Genetics is the study of heredity 11.1 Traits Tyler has free earlobes like his father. His mother has attached earlobes. Why does Tyler have earlobes like his father? In this section you will learn about traits and how they are passed

More information

11.1 The Work of Gregor Mendel

11.1 The Work of Gregor Mendel 11.1 The Work of Gregor Mendel Lesson Objectives Describe Mendel s studies and conclusions about inheritance. Describe what happens during segregation. Lesson Summary The Experiments of Gregor Mendel The

More information

Genetics. The study of heredity. discovered the. Gregor Mendel (1860 s) garden peas.

Genetics. The study of heredity. discovered the. Gregor Mendel (1860 s) garden peas. GENETICS Genetics The study of heredity. Gregor Mendel (1860 s) discovered the fundamental principles of genetics by breeding garden peas. Genetics Alleles 1. Alternative forms of genes. 2. Units that

More information

Fundamentals of Genetics. Chapter 9

Fundamentals of Genetics. Chapter 9 Fundamentals of Genetics Chapter 9 Heredity: the transmission of genetic information from one generation to the next. Genes: Provide continuity between generations that is essential for life Control to

More information

7A The Origin of Modern Genetics

7A The Origin of Modern Genetics Life Science Chapter 7 Genetics of Organisms 7A The Origin of Modern Genetics Genetics the study of inheritance (the study of how traits are inherited through the interactions of alleles) Heredity: the

More information

Chapter 7: Genetics Lesson 2: Gregor Mendel and Genetics

Chapter 7: Genetics Lesson 2: Gregor Mendel and Genetics Chapter 7: Genetics Lesson 2: Gregor Mendel and Genetics These purple-flowered plants are not just pretty to look at. Plants like these led to a huge leap forward in biology. The plants are common garden

More information

Genetics: The Science of Heredity

Genetics: The Science of Heredity Chapter 3 Genetics: The Science of Heredity Objectives Describe the results of Mendel's Experiment. Identify the role of alleles in controlling the inheritance of traits. Page 70 This Baby Koala What is

More information

GENETICS PROBLEMS Genetics Problems Lab 17-1

GENETICS PROBLEMS Genetics Problems Lab 17-1 GENETICS PROBLEMS Introduction: One of the facts of life involves the different types of offspring that can be produced as a result of sexual reproduction. Offspring may have traits of one parent, both

More information

Non-Disjunction Review. tent/animations/content/mistakesmei osis/mistakesmeiosis.html

Non-Disjunction Review.  tent/animations/content/mistakesmei osis/mistakesmeiosis.html Non-Disjunction Review http://www.sumanasinc.com/webcon tent/animations/content/mistakesmei osis/mistakesmeiosis.html Lesson# 1.6- Genetic Diversity and Heredity Gregor Mendel (1822-1884) Pioneer of genetics

More information

Heredity. Sarah crosses a homozygous white flower and a homozygous purple flower. The cross results in all purple flowers.

Heredity. Sarah crosses a homozygous white flower and a homozygous purple flower. The cross results in all purple flowers. Heredity 1. Sarah is doing an experiment on pea plants. She is studying the color of the pea plants. Sarah has noticed that many pea plants have purple flowers and many have white flowers. Sarah crosses

More information

2. Which hereditary rule explains why a self-fertilizing parent that is heterozygous for the A locus (Aa) can produce offspring that are AA or aa?

2. Which hereditary rule explains why a self-fertilizing parent that is heterozygous for the A locus (Aa) can produce offspring that are AA or aa? Heredity 1. Technology Enhanced Questions are not available in Word format. 2. Which hereditary rule explains why a self-fertilizing parent that is heterozygous for the A locus (Aa) can produce offspring

More information

Name Date Period. Genetics Review

Name Date Period. Genetics Review Name Date Period Genetics Review MULTIPLE CHOICE: Circle the answer that best completes the sentence. The Austrian monk whose experiments with pea plants were the beginning of our understanding of genetics

More information

Biology 160 Lab Module 12 Mendelian Genetics

Biology 160 Lab Module 12 Mendelian Genetics BIOL& 160 Clark College 1 Biology 160 Lab Module 12 Mendelian Genetics Name Learning Outcomes Upon successful completion of this lab, you should be able to: 1. Understand character inheritance, allelic

More information

Biology 2250 Principles of Genetics. Weekly Online Quizzes. WebCT Quizzes. Mendelian Genetics. Basic Concepts of Genetics

Biology 2250 Principles of Genetics. Weekly Online Quizzes. WebCT Quizzes. Mendelian Genetics. Basic Concepts of Genetics Biology 2250 Principles of Genetics Announcements Test I marks are posted outside SN-3021 and in the lab. Exams will be returned Tuesday Spring Biology Courses at Harlow: http://www.mun.ca/harlow/ Weekly

More information

Mendelian Genetics. Lab Exercise 13. Contents. Objectives. Introduction

Mendelian Genetics. Lab Exercise 13. Contents. Objectives. Introduction Lab Exercise Mendelian Genetics Contents Objectives 1 Introduction 1 Activity.1 Forming Gametes 2 Activity.2 Monohybrid Cross 3 Activity.3 Dihybrid Cross 4 Activity.4 Gene Linkage 5 Resutls Section 8 Objectives

More information

Biology 3 Mendelian Inheritance (CH 7)

Biology 3 Mendelian Inheritance (CH 7) Biology 3 Mendelian Inheritance (CH 7) Dr. Terence Lee Genetics Genetics 1 2.20 DNA holds the genetic information to build an organism. 2.21 RNA is a universal translator, reading DNA and directing protein

More information

Directed Reading B. Section: Traits and Inheritance A GREAT IDEA

Directed Reading B. Section: Traits and Inheritance A GREAT IDEA Skills Worksheet Directed Reading B Section: Traits and Inheritance A GREAT IDEA 1. What is the ratio that Mendel found for dominant to recessive traits? a. 1 to 1 c. 3 to 1 b. 2 to 1 d. 4 to 1 2. What

More information

Genetics Exam Review Questions

Genetics Exam Review Questions Name: Date: Genetics Exam Review Questions Multiple Choice: Select the best answer to complete each statement. 1. Mendel crossed pea plants with greens seeds (yy) with plants with yellow seeds (YY). The

More information

CIBI Midterm Examination III November 2005

CIBI Midterm Examination III November 2005 Name: CIBI3031-070 Midterm Examination III November 2005 Multiple Choice In each blank, identify the letter of the choice that best completes the statement or answers the question. 1. If a parent cell

More information

Cell Division. Use Target Reading Skills. This section explains how cells grow and divide.

Cell Division. Use Target Reading Skills. This section explains how cells grow and divide. Cell Processes and Energy Name Date Class Cell Processes and Energy Guided Reading and Study Cell Division This section explains how cells grow and divide. Use Target Reading Skills As you read, make a

More information

Mendel suggested that flower colour was controlled by inherited factors. Draw a ring around the correct answer to complete the following sentences.

Mendel suggested that flower colour was controlled by inherited factors. Draw a ring around the correct answer to complete the following sentences. Q. The diagrams show one of Mendel s experiments. He bred pea plants. Mendel suggested that flower colour was controlled by inherited factors. Draw a ring around the correct answer to complete the following

More information

Lesson #1.7-Incomplete Dominance Codominance Dihybrid Crosses

Lesson #1.7-Incomplete Dominance Codominance Dihybrid Crosses Lesson #1.7-Incomplete Dominance Codominance Dihybrid Crosses Exceptions to Mendel s principles So far, offspring have either the phenotype of one parent or the other. Sometimes, there is no dominant or

More information

Mendelian Genetics and Inheritance Problems

Mendelian Genetics and Inheritance Problems Biology 211 Mendelian Genetics and Inheritance Problems Mendel discovered and described many of the basic rules of genetics after studying the pattern of how inheritable traits were passed from generation

More information

UNIT THREE: BIOLOGY HEREDITY

UNIT THREE: BIOLOGY HEREDITY DO NOW Quietly and without getting out of your seats, look around at your classmates. Note how they vary in the shape of the front hairline (widow s peak vs. straight hairline), the space between the two

More information

Genetics. The connection between Gene expression and Genetics. Genotype is the genetic make up of an organism (gene), which codes for a protein.

Genetics. The connection between Gene expression and Genetics. Genotype is the genetic make up of an organism (gene), which codes for a protein. Genetics The connection between Gene expression and Genetics Genotype is the genetic make up of an organism (gene), which codes for a protein. The protein has a specific function which produces a trait.

More information

Name Period Date GENETICS

Name Period Date GENETICS Name Period Date GENETICS I. GREGOR MENDEL founder of genetics (crossed pea plants to study heredity = passing on of traits) 1. GENES make up chromosomes a. 2 genes (ALLELES) for every trait (1 from each

More information

Mendelian Genetics. I. Background

Mendelian Genetics. I. Background Mendelian Genetics Objectives 1. To understand the Principles of Segregation and Independent Assortment. 2. To understand how Mendel s principles can explain transmission of characters from one generation

More information

MODULE 11: MENDELIAN GENETICS 1

MODULE 11: MENDELIAN GENETICS 1 PEER-LED TEAM LEARNING INTRODUCTORY BIOLOGY MODULE 11: MENDELIAN GENETICS 1 JOSEPH G. GRISWOLD, PH.D. (City College of New York, CUNY) I. Introduction In sexually reproducing animals, genetic information

More information

2. For example, tall plant, round seed, violet flower, etc. are dominant characters in a pea plant.

2. For example, tall plant, round seed, violet flower, etc. are dominant characters in a pea plant. Principles of Inheritance and Variation Class 12 Chapter 5 Principles of Inheritance and Variation Exercise Solutions Exercise : Solutions of Questions on Page Number : 93 Q1 : Mention the advantages of

More information

The Mendelian Genetics of Corn

The Mendelian Genetics of Corn The Mendelian Genetics of Corn (Adapted from Mendelian Genetics for Corn by Carolina Biological Supply Company) Objectives: In this laboratory investigation, you will: a. Use corn to study genetic crosses.

More information

Definition/Example Signature

Definition/Example Signature Engage: Who Remembers? Instructions: Discuss the following terms with other students. Try to find someone who can explain the term to you or give you an example of the term. Record the definition or example

More information

Mendel s Laws. Patterns of Gene Inheritance. Gregor Mendel. What We Know Now. Gene locus. The Inheritance of a Single Trait.

Mendel s Laws. Patterns of Gene Inheritance. Gregor Mendel. What We Know Now. Gene locus. The Inheritance of a Single Trait. Mendel s Laws Patterns of Gene Inheritance Gregor Mendel - Austrian monk Developed laws of heredity Worked with pea plants Investigated genetics at organism level Gregor Mendel What Mendel Said: 1. Characteristics

More information

Heredity - Patterns of Inheritance

Heredity - Patterns of Inheritance Heredity - Patterns of Inheritance Genes and Alleles A. Genes 1. A sequence of nucleotides that codes for a special functional product a. Transfer RNA b. Enzyme c. Structural protein d. Pigments 2. Genes

More information

INTRODUCTION TO GENETICS USING TOBACCO (Nicotiana tabacum) SEEDLINGS

INTRODUCTION TO GENETICS USING TOBACCO (Nicotiana tabacum) SEEDLINGS INTRODUCTION TO GENETICS USING TOBACCO (Nicotiana tabacum) SEEDLINGS By Dr. Susan Petro Based on a lab by Dr. Elaine Winshell Nicotiana tabacum Objectives To apply Mendel s Law of Segregation To use Punnett

More information

Furry Family Pre-Test Questions

Furry Family Pre-Test Questions Furry Family Pre-Test Questions Name: Period: Date: 1) When will a recessive trait show its effect? a. Even if no recessive genes for that trait are present b. In the presence of one recessive gene c.

More information

3. If a heterozygous fire-breathing dragon is crossed with one that does not breathe fire, how many offspring will be fire breathers?

3. If a heterozygous fire-breathing dragon is crossed with one that does not breathe fire, how many offspring will be fire breathers? Mrs. Davisson Name Chapter 11: Genetics Per. Row Part I. Monohybrid Crosses - Complete Dominance For each of the following genetics problems, follow these steps in reaching a complete answer: Show all

More information

Copyright 2014 Edmentum - All rights reserved.

Copyright 2014 Edmentum - All rights reserved. Biology Heredity Blizzard Bag 2014-2015 Copyright 2014 Edmentum - All rights reserved. 1. Many serious diseases can be passed from parent to offspring through genes. In which case given below is a recessive

More information

Genetics Problem Set

Genetics Problem Set AP Biology Name: Genetics Problem Set Independent Assortment Problems 1. One gene has alleles A and a. Another has alleles B and b. For each genotype listed, what type(s) of gametes will be produced? (Assume

More information

Name Period. 3. How many rounds of DNA replication and cell division occur during meiosis?

Name Period. 3. How many rounds of DNA replication and cell division occur during meiosis? Name Period GENERAL BIOLOGY Second Semester Study Guide Chapters 3, 4, 5, 6, 11, 14, 16, 17, 18 and 19. SEXUAL REPRODUCTION AND MEIOSIS 1. What is the purpose of meiosis? 2. Distinguish between diploid

More information

INHERITANCE & VARIATION 22 APRIL 2015 Section A: Summary Content Notes

INHERITANCE & VARIATION 22 APRIL 2015 Section A: Summary Content Notes INHERITANCE & VARIATION 22 APRIL 2015 Section A: Summary Content Notes Monohybrid Crosses Incomplete Dominance and Co-dominance Incomplete dominance: when the dominant gene allele is not able to completely

More information

Biology Homework Chapter 8: Heredity and Genetic Variation

Biology Homework Chapter 8: Heredity and Genetic Variation Biology Homework Chapter 8: Heredity and Genetic Variation Answer the questions with complete thoughts and complete sentences! * Sections 8.1 and 8.3: The hereditary Role of Genetic material. Read pages

More information

Chapter 13: Meiosis and Sexual Life Cycles

Chapter 13: Meiosis and Sexual Life Cycles Name Period Concept 13.1 Offspring acquire genes from parents by inheriting chromosomes 1. Let s begin with a review of several terms that you may already know. Define: gene locus gamete male gamete female

More information

DAYSHEET 53: Genetics Vocabulary Practice

DAYSHEET 53: Genetics Vocabulary Practice UNIT 5: Genetics DAYSHEET 53: Genetics Vocabulary Practice Name Biology I Date: Purpose: To review basic genetics vocabulary Task: As you read, highlight or underline the definitions of the words in bold.

More information

Bb Tt Ll Aa Hh Ee. 6. Use the code to DRAW (build) A PICTURE OF WHAT THIS SNOWBABY WILL LOOK LIKE.

Bb Tt Ll Aa Hh Ee. 6. Use the code to DRAW (build) A PICTURE OF WHAT THIS SNOWBABY WILL LOOK LIKE. Snowman (Snowpeople) GENETICS NAME The GENOTYPE for your parent Snowperson is: Bb Tt Ll Aa Hh Ee 1. This parent is for all of its alleles. homozygous heterozygous 2. What is its PHENOTYPE? 3. Draw (build)

More information

Seed color gene with two alleles: R = purple (or red) allele (dominant allele) r = yellow (or white) allele (recessive allele)

Seed color gene with two alleles: R = purple (or red) allele (dominant allele) r = yellow (or white) allele (recessive allele) Patterns of Inheritance in Maize written by J. D. Hendrix Learning Objectives Upon completing the exercise, each student should be able to define the following terms gene, allele, genotype, phenotype,

More information

GENETIC CROSSES. Monohybrid Crosses

GENETIC CROSSES. Monohybrid Crosses GENETIC CROSSES Monohybrid Crosses Objectives Explain the difference between genotype and phenotype Explain the difference between homozygous and heterozygous Explain how probability is used to predict

More information

Mendelian and Non-Mendelian Heredity Grade Ten

Mendelian and Non-Mendelian Heredity Grade Ten Ohio Standards Connection: Life Sciences Benchmark C Explain the genetic mechanisms and molecular basis of inheritance. Indicator 6 Explain that a unit of hereditary information is called a gene, and genes

More information

What about two traits? Dihybrid Crosses

What about two traits? Dihybrid Crosses What about two traits? Dihybrid Crosses! Consider two traits for pea: Color: Y (yellow) and y (green) Shape: R (round) and r (wrinkled)! Each dihybrid plant produces 4 gamete types of equal frequency.

More information

SHOULD THIS DOG BE CALLED SPOT?

SHOULD THIS DOG BE CALLED SPOT? SHOULD THIS DOG BE CALLED SPOT? Imagine this microscopic drama. A sperm cell from a male dog fuses with an egg cell from a female dog. Each dog s gamete carries 39 chromosomes. The zygote that results

More information

Multiple Choice Review - Heredity

Multiple Choice Review - Heredity Questions #1-3 refer to the following situation: Multiple Choice Review - Heredity In humans, detached earlobes (D) is dominant to attached earlobes (d). Alison and her father have attached earlobes. Her

More information

Complex Inheritance. Mendel observed monogenic traits and no linked genes It s not usually that simple.

Complex Inheritance. Mendel observed monogenic traits and no linked genes It s not usually that simple. Complex Inheritance Mendel observed monogenic traits and no linked genes It s not usually that simple. Other Types of Inheritance Incomplete Dominance The phenotype of the heterozygote is intermediate

More information

Genetics. PART I: Mitosis & Meiosis prerequisites for inheritance. A. Mitosis. Review: A closer look inside of the nucleus: DNA: chromatin:

Genetics. PART I: Mitosis & Meiosis prerequisites for inheritance. A. Mitosis. Review: A closer look inside of the nucleus: DNA: chromatin: Genetics PART I: Mitosis & Meiosis prerequisites for inheritance A. Mitosis Review: A closer look inside of the nucleus: DNA: chromatin: chromosome: parts: chromatid: centromere: telomere: 1 Mitosis &

More information

Genetics (20%) Sample Test Prep Questions

Genetics (20%) Sample Test Prep Questions Genetics (20%) Sample Test Prep Questions Grade 7 (2a Genetics) Students know the differences between the life cycles and reproduction methods of sexual and asexual organisms. (pg. 106 Science Framework)

More information

Name: Period: Date: PAP Meiosis, Genetics & Heredity Test Review KEY

Name: Period: Date: PAP Meiosis, Genetics & Heredity Test Review KEY Name: Period: Date: PAP Meiosis, Genetics & Heredity Test Review KEY 1. How are an organism s complex traits determined? DNA contains codes for proteins which are necessary for growth an functioning in

More information

Bio EOC Topics for Cell Reproduction: Bio EOC Questions for Cell Reproduction:

Bio EOC Topics for Cell Reproduction: Bio EOC Questions for Cell Reproduction: Bio EOC Topics for Cell Reproduction: Asexual vs. sexual reproduction Mitosis steps, diagrams, purpose o Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis Meiosis steps, diagrams, purpose

More information

Chapter 9 Patterns of Inheritance

Chapter 9 Patterns of Inheritance Bio 100 Patterns of Inheritance 1 Chapter 9 Patterns of Inheritance Modern genetics began with Gregor Mendel s quantitative experiments with pea plants History of Heredity Blending theory of heredity -

More information

c. Law of Independent Assortment: Alleles separate and do not have an effect on another allele.

c. Law of Independent Assortment: Alleles separate and do not have an effect on another allele. Level Genetics Review KEY Describe the 3 laws that Gregor Mendel established after working with pea plants. a. Law of Dominance: states that the effect of a recessive allele is not observed when a dominant

More information

Inheritance. Genes What STUDENT HANDOUT. Module 9

Inheritance. Genes What STUDENT HANDOUT. Module 9 Inheritance Genes What It sare thethey law!good for? Module 9 Genetics for Kids: Module 9 Inheritance It s the law! Part I: Introduction The History of Heredity In the 860 s, an Austrian monk, named Gregor

More information

BABY LAB. Let E = the dominant form of the gene / unattached earlobes Let e = the recessive form of the gene / attached earlobes E E

BABY LAB. Let E = the dominant form of the gene / unattached earlobes Let e = the recessive form of the gene / attached earlobes E E Baby Face 1 NAME BABY LAB BACKGROUND INFORMATION: Heredity is the passing of traits from parents to children. Hair color, eye color, eye shape, blood type and some diseases are all examples of traits that

More information

4.6 Dihybrid Crosses. offspring produced from such a cross are heterozygous for both the yellow and round genotypes. YYRR. YR YR yr.

4.6 Dihybrid Crosses. offspring produced from such a cross are heterozygous for both the yellow and round genotypes. YYRR. YR YR yr. (a) Indicate the genotypes and phenotypes of the F generation from the mating of a heterozygous Himalayan rabbit with an albino rabbit. (b) The mating of a full-coloured rabbit with a light-grey rabbit

More information

Genetics Practice. 1. The diagram below shows the chromosomes from a cell after they were photographed under a microscope.

Genetics Practice. 1. The diagram below shows the chromosomes from a cell after they were photographed under a microscope. Name: Date: 1. The diagram below shows the chromosomes from a cell after they were photographed under a microscope. Which of the following questions may best be answered by studying an organism s chromosomes?.

More information

Genetics & Inheritance

Genetics & Inheritance Genetics & Inheritance Part 1 Earth Day Creature! Genetics Terminology Genes are DNA sequences that contain instructions for building proteins or RNA molecules with enzymatic functions. Chromosomes are

More information

Mr and Mrs Brown do not have cystic fibrosis but they have a child with cystic fibrosis.

Mr and Mrs Brown do not have cystic fibrosis but they have a child with cystic fibrosis. Q. Cystic fibrosis is an inherited disorder. Mr and Mrs Brown do not have cystic fibrosis but they have a child with cystic fibrosis. (a) Draw a ring around the correct answer to complete each sentence.

More information

Genetics Packet ~ Punnett Square Practice KEY

Genetics Packet ~ Punnett Square Practice KEY Basics Name: Date: Block: Genetics Packet ~ Punnett Square Practice KEY 1. The following pairs of letters represent alleles of different genotypes. Indicate which pairs are Heterozygous and which are Homozygous.

More information

VelcroGenes. Timeline 3-50-minute class periods (including individual assessment)

VelcroGenes. Timeline 3-50-minute class periods (including individual assessment) VelcroGenes Objectives The student will demonstrate how traits carried on chromosomes independently assort. The student will understand how traits carried on chromosomes determine the phenotype and genotype

More information

SB28. StudyPacks KS4 SCIENCE STUDY. Genetics. Genetic Diagrams

SB28. StudyPacks KS4 SCIENCE STUDY. Genetics. Genetic Diagrams StudyPacks STUDY. KS4 SCIENCE Genetics Genetic Diagrams This Study Pack aims to cover:. How to draw genetic diagrams 2. How to analyse genetic diagrams for sexual reproduction. SB28 Study Packs are prepared

More information

TEST NAME: Genetics unit test TEST ID: GRADE:07 SUBJECT:Life and Physical Sciences TEST CATEGORY: School Assessment

TEST NAME: Genetics unit test TEST ID: GRADE:07 SUBJECT:Life and Physical Sciences TEST CATEGORY: School Assessment TEST NAME: Genetics unit test TEST ID: 437885 GRADE:07 SUBJECT:Life and Physical Sciences TEST CATEGORY: School Assessment Genetics unit test Page 1 of 12 Student: Class: Date: 1. There are four blood

More information

2. In humans, brown eye color (B) is dominant over blue eye color (b). What are the phenotypes of the following genotypes? A. BB B. bb C.

2. In humans, brown eye color (B) is dominant over blue eye color (b). What are the phenotypes of the following genotypes? A. BB B. bb C. Name: Period: Genetics Packet The Basics 1. The following pairs of letters represent alleles of different genotypes. Indicate which pairs are Heterozygous and which are Homozygous. Also indicate whether

More information

Gene Genotype aa AA AA Aa AA. Gene Genotype AA Aa AA aa AA. Gene Genotype Aa aa Aa AA Aa.

Gene Genotype aa AA AA Aa AA. Gene Genotype AA Aa AA aa AA. Gene Genotype Aa aa Aa AA Aa. To use this gene mapping activity, print out as many dogs as needed to give one to each student. (Cut along dotted lines to produce 4 dog handouts per page.) It is important that the relative ratios of

More information

MENDELIAN GENETICS. genes and their interactions with the environment. Human height and intelligence are among these complex polygenic characters.

MENDELIAN GENETICS. genes and their interactions with the environment. Human height and intelligence are among these complex polygenic characters. Name: Dr. Gonzalez BSC2005 In-Class Worksheet MENDELIAN GENETICS Introduction In sexually reproducing animals, genetic information is passed from the parents to offspring by means of haploid gametes (egg

More information

InGen: Dino Genetics Lab Post-Lab Activity: DNA and Genetics

InGen: Dino Genetics Lab Post-Lab Activity: DNA and Genetics InGen: Dino Genetics Lab Post-Lab Activity: DNA and Genetics This activity is meant to extend your students knowledge of the topics covered in our DNA and Genetics lab. Through this activity, pairs of

More information

Scientists use observable evidence to direct their questions about phenomena. For which question would the karyotype provide the most evidence?

Scientists use observable evidence to direct their questions about phenomena. For which question would the karyotype provide the most evidence? 1. A karyotype shows the visual appearance of an individual s chromosomes. The karyotype below shows the chromosomes of a person with a genetic disorder. Scientists use observable evidence to direct their

More information

MODULE 12: MENDELIAN GENETICS 2

MODULE 12: MENDELIAN GENETICS 2 PEER-LED TEAM LEARNING INTRODUCTORY BIOLOGY MODULE 12: MENDELIAN GENETICS 2 JOSEPH G. GRISWOLD, PH.D.* AND DAVID L. WILSON, PH.D.+ (*City College of New York, CUNY; +Univ. of Miami, FL) I. Introduction

More information

Biology Lesson Plan: Connecting Meiosis and Inheritance

Biology Lesson Plan: Connecting Meiosis and Inheritance Biology Lesson Plan: Connecting Meiosis and Inheritance Amy Dewees, Angela Maresco, and Melissa Parente Biology 501 July 25, 2006 1 Table of Contents Lesson Plan Introduction 3 Teacher Information for

More information

Chapter 18. Genes and Medical Genetics

Chapter 18. Genes and Medical Genetics 1 Chapter 18 Genes and Medical Genetics 2 1 Outline Genotype vs. Phenotype Dominant vs. Recessive Traits Punnett Squares Autosomal Recessive Disorders Autosomal Dominant Disorders Pedigree Charts Multiple

More information

Assessment Schedule 2014 Biology: Demonstrate understanding of genetic variation and change (91157) Evidence Statement

Assessment Schedule 2014 Biology: Demonstrate understanding of genetic variation and change (91157) Evidence Statement NCEA Level 2 Biology (91157) 2014 page 1 of 5 Assessment Schedule 2014 Biology: Demonstrate understanding of genetic variation and change (91157) Evidence Statement NCEA Level 2 Biology (91157) 2014 page

More information

Human Genetics: Blood Types Lab Ch. 14

Human Genetics: Blood Types Lab Ch. 14 Name: Pre-Lab Questions: Use page 394 in your textbook to answer the questions below. Period: CK 1. List the four blood types possible in humans. a. b. c. d. 2. Why is it important to know your blood type

More information

Problem Set 4 BILD10 / Winter 2014

Problem Set 4 BILD10 / Winter 2014 1) The DNA in linear eukaryotic chromosomes is wrapped around proteins called, which keep the DNA from getting tangled and enable an orderly, tight, and efficient packing of the DNA inside the cell. A)

More information

4. In a molecule of DNA, if there is 21% adenine (A), how much thymine (T) is present? How much cytosine (C) is present?

4. In a molecule of DNA, if there is 21% adenine (A), how much thymine (T) is present? How much cytosine (C) is present? Name Biology I Test Review DNA, Protein Synthesis and Genetics This review should only be used as a supplement to your notes, activities, and previous quizzes. For additional review and questions it may

More information

Bio 102 Practice Problems Mendelian Genetics and Extensions

Bio 102 Practice Problems Mendelian Genetics and Extensions Bio 102 Practice Problems Mendelian Genetics and Extensions Short answer (show your work or thinking to get partial credit): 1. In peas, tall is dominant over dwarf. If a plant homozygous for tall is crossed

More information

Bell Work: Friday, December 14. If red is dominant to white in flowers, how do we get pink ones?

Bell Work: Friday, December 14. If red is dominant to white in flowers, how do we get pink ones? Bell Work: Friday, December 14 If red is dominant to white in flowers, how do we get pink ones? 1 Review We have discussed human traits that have two completely different phenotypes (physical appearances)

More information

Multiple Choice Review Mendelian Genetics & Inheritance Patterns

Multiple Choice Review Mendelian Genetics & Inheritance Patterns Multiple Choice Review Mendelian Genetics & 1. Jean-Baptiste Lamarck introduced a theory about inheritance in the early 1800s. Which of the following accurately describes his Theory of Acquired Characteristics?

More information

Name period date assigned date due date returned. Heredity Questions. 1. How many chromosomes are located in each human nucleus?

Name period date assigned date due date returned. Heredity Questions. 1. How many chromosomes are located in each human nucleus? H Science Name period date assigned date due date returned 1. How many chromosomes are located in each human nucleus? 2. What four bases is DNA made of? 1. 2. 3. 4. 3. What pairs with cytosine? adenine?

More information

GENERAL BIOLOGY LAB 1 (BSC1010L) Lab #8: Mendelian Genetics

GENERAL BIOLOGY LAB 1 (BSC1010L) Lab #8: Mendelian Genetics GENERAL BIOLOGY LAB 1 (BSC1010L) Lab #8: Mendelian Genetics OBJECTIVES: Understand Mendel s laws of segregation and independent assortment. Differentiate between an organism s genotype and phenotype. Recognize

More information

How are the processes of aerobic respiration and photosynthesis linked? What s another name for the second stage of photosynthesis?

How are the processes of aerobic respiration and photosynthesis linked? What s another name for the second stage of photosynthesis? Exam #2 Study Guide Use your book as a reference if you don t understand something, or better yet, ask me! Photosynthesis only worry about 2 nd stage How are the processes of aerobic respiration and photosynthesis

More information

Mr. Storie 10F Science Reproduction Unit Review. Reproduction Review YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS:

Mr. Storie 10F Science Reproduction Unit Review. Reproduction Review YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS: Reproduction Review YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS: CHROMOSOME GENE DNA TRAIT HEREDITY INTERPHASE MITOSIS CYTOKINESIS ASEXUAL BINARY FISSION CELL CYCLE GENETIC DIVERSITY

More information

GENETIC TRAITS IN HARRY POTTER DOMAIN 3-GENETICS

GENETIC TRAITS IN HARRY POTTER DOMAIN 3-GENETICS Learning Outcomes: Students will be able to: Define the basic genetic terms and concepts DNA, chromosome, gene, allele, homozygous, heterozygous, recessive and dominant genes, genotype, phenotype, and

More information

Name: Period: Genetics Problems

Name: Period: Genetics Problems Name: Period: Genetics Problems Basics 1. The following pairs of letters represent alleles of different genotypes. Indicate which pairs are Heterozygous and which are Homozygous. Also indicate whether

More information

Genetics Worksheet. Name

Genetics Worksheet. Name Genetics Worksheet Name Section A: Vocabulary 1. Identify if the alleles are homozygous (Ho) or heterozygous (He). a. DD c. Yy e. Ee b. Tt d. hh f. KK 2. For each genotype below, determine the phenotype.

More information